Supercharges your weapons for 40 seconds. For example, the Hellstaff will rain fire from the sky, and the Phoenix Rod becomes a flamethrower.
Unlike Doom , Heretic lets you carry items to use whenever you want. This is key to surviving the harder, later episodes. Heretic.Shadow.of.the.Serpent.Riders-GOG.rar
This "Shadow of the Serpent Riders" edition includes the original three episodes plus two additional high-difficulty campaigns: Supercharges your weapons for 40 seconds